System and Method for High Speed Packet Transmission

1. A system comprising: a blade, the blade comprising: one or more ports for receiving or transmitting packets; and an integrated circuit, the integrated circuit comprising: a first core; and a second core; wherein the first core comprises a first switching circuit operative to transfer a first packet from the second core to the first core; and wherein the second core comprises a second switching circuit operative to transfer a second packet from the first core to the second core.

2. The system of claim 1 wherein the first core is operative to store the first packet in the second switching circuit and the second core is operative to retrieve the first packet from the second switching circuit.

3. The system of claim 1 wherein: the first core is operative to store the first packet in the second switching circuit and the second core is operative to retrieve the first packet from the second switching circuit; and the second core is operative to store the second packet in the first switching circuit and the first core is operative to retrieve the second packet from the first switching circuit.

4. The system of claim 1 wherein the first switching circuit is a FIFO.

5. The system of claim 1 wherein the second switching circuit is a FIFO.

6. The system of claim 1 wherein the first core further comprises a first processor that determines whether to transfer the first packet to the second core.

7. The system of claim 6 wherein the first processor determines whether to transfer the first packet from the first core to the second core by analyzing a portion of the first packet.

8. The system of claim 6 wherein the first processor determines whether to transfer the first packet from the first core to the second core by extracting a forward identifier from the first packet and analyzing the forward identifier.

9. The system of claim 6 wherein the second core further comprises a second processor that determines whether to transfer the second packet to the first core.

10. The system of claim 1 wherein the first packet is the same as the second packet.

11. The system of claim 1 further comprising: another blade; and a backplane coupled to the blades for transmission of packets between the blades; wherein transfer of a packet between the first core and the second core does not comprise transmitting the packet over the backplane.

12. A system comprising: a blade, the blade comprising: one or more ports for receiving or transmitting packets; and an integrated circuit, the integrated circuit comprising: a first core; and a second core; wherein the first core comprises a first switching circuit operative to transfer a first packet from the first core to the second core; and wherein the second core comprises a second switching circuit operative to transfer a second packet from the second core to the first core.

13. The system of claim 12 wherein the first core is operative to store the first packet in the first switching circuit and the second core is operative to retrieve the first packet from the first switching circuit.

14. The system of claim 12 wherein: the first core is operative to store the first packet in the first switching circuit and the second core is operative to retrieve the first packet from the first switching circuit; and the second core is operative to store the second packet in the second switching circuit and the first core is operative to retrieve the second packet from the second switching circuit.

15. The system of claim 12 wherein the first switching circuit is a FIFO.

16. The system of claim 12 wherein the second switching circuit is a FIFO.

17. The system of claim 12 wherein the first core further comprises a first processor that determines whether to transfer the first packet to the second core.

18. The system of claim 17 wherein the first processor determines whether to transfer the first packet from the first core to the second core by analyzing a portion of the first packet.

19. The system of claim 17 wherein the first processor determines whether to transfer the first packet from the first core to the second core by extracting a forward identifier from the first packet and analyzing the forward identifier.

20. The system of claim 17 wherein the second core further comprises a second processor that determines whether to transfer the second packet to the first core.

21. The system of claim 12 wherein the first packet is the same as the second packet.

22. The system of claim 12 further comprising: another blade; and a backplane coupled to the blades for transmission of packets between the blades; wherein transfer of a packet between the first core and the second core does not comprise transmitting the packet over the backplane.

23. A method comprising: receiving a packet at a first core of an integrated circuit of a blade, the blade comprising the integrated circuit and one or more ports for receiving or transmitting packets, the integrated circuit comprising the first core and a second core; analyzing the packet at the first core to determine whether to transfer the packet to the second core of the integrated circuit; and upon determining to transfer the packet to the second core, storing the packet in a switching circuit located in the second core.

24. The method of claim 23 further comprising retrieving the packet from the switching circuit.

25. The method of claim 23 wherein analyzing the packet further comprises extracting a forward identifier from the packet.

26. The method of claim 24 wherein retrieving the packet does not comprise transmitting the packet over a backplane coupled to blades.

27. A method comprising: receiving a packet at a first core of an integrated circuit of a blade, the blade comprising the integrated circuit and one or more ports for receiving or transmitting packets, the integrated circuit comprising the first core and a second core; analyzing the packet at the first core to determine whether to transfer the packet to the second core of the integrated circuit; upon determining to transfer the packet to the second core, storing the packet in a switching circuit located in the first core polling the switching circuit in the first core to determine if the switching circuit has packets to be retrieved by the second core.

28. The method of claim 27 further comprising retrieving the packet from the switching circuit upon determining that the switching circuit has packets designated for the second core.

29. The method of claim 27 wherein analyzing the packet further comprises extracting a forward identifier from the packet.

30. The method of claim 28 wherein retrieving the packet does not comprise transmitting the packet over a backplane coupled to blades.